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Please enable JavaScript in your browser settings or update your browser.Symbols 2/3 | Data Types and Variables
Introduction to JavaScript (staging)
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Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
Writing our first codeOutput Using Variables 1/2Output Using Variables 2/2
2. JavaScript syntax
JavaScript SyntaxJavaScript VariablesJavaScript OperatorsIdentifiers in JavaScriptNaming IdentifiersReserved keywords in JavaScriptNaming Convention in JavaScript. Case StylesVariables Naming ConventionBoolean Naming ConventionConstant Naming ConventionFunction & Classes Naming ConventionMultiline StringsMultiline Strings. ConcatenatingCommenting in JavaScriptCommenting in JavaScript. Multi-line Comments
3. Data Types and Variables
What are Variables?What are Data-types?JavaScript and Type ConversionVar 1/3Var 2/3Var 3/3Let 1/2Let 2/2Constant 1/3Constant 2/3Constant 3/3Number 1/3Number 2/3Number 3/3Boolean 1/4Boolean 2/4Boolean 3/4Boolean 4/4Strings 1/5Strings 2/5Strings 3/5Strings 4/5Strings 5/5BigInt 1/3BigInt 2/3BigInt 3/3Symbols 1/3Symbols 2/3Symbols 3/3NullUndefinedNull vs Undefined

bookSymbols 2/3

Symbol() Function Description:

We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.

The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:


              
1234

            
let firstName = Symbol('Michael');
console.log(firstName.toString());
let lastName = Symbol('Clarke');
console.log(lastName.toString());
copy

Tarefa

Create a symbol with the value key and store it in the variable password. Output the result.

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Seção 3. Capítulo 28
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bookSymbols 2/3

Symbol() Function Description:

We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.

The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:


              
1234

            
let firstName = Symbol('Michael');
console.log(firstName.toString());
let lastName = Symbol('Clarke');
console.log(lastName.toString());
copy

Tarefa

Create a symbol with the value key and store it in the variable password. Output the result.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 3. Capítulo 28
toggle bottom row

bookSymbols 2/3

Symbol() Function Description:

We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.

The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:


              
1234

            
let firstName = Symbol('Michael');
console.log(firstName.toString());
let lastName = Symbol('Clarke');
console.log(lastName.toString());
copy

Tarefa

Create a symbol with the value key and store it in the variable password. Output the result.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Symbol() Function Description:

We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.

The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:


              
1234

            
let firstName = Symbol('Michael');
console.log(firstName.toString());
let lastName = Symbol('Clarke');
console.log(lastName.toString());
copy

Tarefa

Create a symbol with the value key and store it in the variable password. Output the result.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 3. Capítulo 28
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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